Ethereum Market Data Retrieval via CoinMarketCap API
Ethereum has a permanent ID of 1027 on CoinMarketCap (CMC), which means it will not change regardless of future upgrades, rebrands, or symbol changes. This ID should be used in all API calls instead of the string 'ETH'.
The CMC API allows users to fetch Ethereum market data using the /v3/cryptocurrency/quotes/latest endpoint. The response includes a variety of fields such as circulating supply, total supply, and price data. However, it's essential to note that Ethereum has no maximum supply, making max_supply return null in the response.
To make API calls, users can use cURL, Python, or Node.js, and must provide their CMC PRO API key. The quotes endpoint batches assets efficiently, allowing users to fetch ETH alongside BTC at the same cost of one credit as fetching ETH alone.